Method of rolling metals and apparatus therefor



May 12, 1931. KARIUS 1,804,879

METHOD OF ROLLING METALS AND APPARATUS THEREFOR Filed Dec. 31, 1925 2Sheets-Sheet l Fig. 5. 4

4 Fig.5.

May 12, 1931. u's 1,804,879

METHOD OF ROLLING METALS AND APPARATUS THEREFOR Filed Dec. 51, 1925 2Sheets-Sheet 2 Patented May 12, 1931 UNITED .STATES PATENT OFFICE v KARLximrus, or loam-manna. GERMANY METHOD or nonnme mn'rnnsm arrnna'rcsrumor,

Application filed December 31, 1925, Serial No. 78,618, and in GermanyJanuary 7, 1825.

In rolling section iron with an undercutsection member, moreparticularly in producing channels, the production of an exact "channelis/diflicult, because with the customary method with plain guides a wavychannel L results longitudinally of thebar. In consequence of this thechannel iron is unusable in cases where an exact fit or tight joint isrequired. I

The invention obviates these disadvantages by the provision of .specialguides which are constructed in such way that before the bar enters orafter it leaves the pass, the foot of the bar to be rolled is graduallyrolled inward.

Further the foot, which has to be turned over, is somewhat thinned downat the folding place so that'the fold must occur just at this i) In thedrawings the new method is shown by way of example applied toiron framesfor glass roofs.

There is shown in Fig. 1 the cross-section of a completed iron frame; inFi 2 the crosssection of the iron prior to the formation of the channel;in Fig. 3 a further detail; in Fig.

4 the guide in longitudinal section 4-4 of n Fig. 5; in Fig. 5 across-section 5-5 of Fig. 4 through the guide; in Fig. 6 the guide inplan. In Fig.1 a is the completed iron frame, in which the glass sheet 6is held by means of screwed dogs a and flat washers d between felt orlead strips 6. It is seen from Fig. 2

that the'section up to this point can be easily formed by means ofrolling. If according to Fig. 3 the foot is thinned at f oralternatively thickened at g, the rim It will fold at 7. However thismeasure alone is not suflicient to produce a satisfactory joint. Only ifin the guide 1 Figs. 4 to 6,there is introduced a special guiding filletcan a joint satisfying all requirements be obtained. The operation ofthe guide attached like a stripping guide is as follows. The barpreviously rolled ac-- cording, to Fig. 3 passes between the rolls 0 andenters the guide in th'e direction of the "arrow, when the twist effectsa gradual folding; of the into the desired position.

Then therim passes'gradually behind the pro- 1 j'ectin-of the filletZ'projecting. into the guide,

whicliforces foot of the iron to form with the greatest possibleaccuracy a channel satisfying all requirements.

According to thenature of the use to which the channel iron is to beput, it is also possib e, for example, if no special accuracy of the"channel is required, to use one or the other method alone. Furthermore,the scope of the use is unlimited. For example, it can also be used forthe so-called interlockin of grooved and tongued sheet-piling and simi-0;, lar joints. The guide may be passed as well by the channel ironafter it has left the rolls. Havin now fully described my invention,what I c aim and desire to secure by Letters Patent is Y I 1. A methodof rolling iron sections, con

sisting in rolling the section to approximate structural form toprovide'a body and a thinnedportion and a thicker rim' portion,

drawing the section through a guide provided with a twist before thesection passes through thinned portion and a thicker rim portion,

drawing the section through a guide provided with a twist 'before thesection passes through the finishing rolls to bend the rim only tooverlie the thinned portion independently of the rolls. .1 p

3. A method of rolling iron sections, consisting in rblling the sectionto approximate structural form to provide a body and a thinned portionand a thicker rim portion, drawin the section through a guide providedwith a fillet before the section passes through the finishing rolls,said fillet being provided with a projection into the guide to bend therim only to overlie the thinned portion.

4. Apparatus for rolling iron sections with undercut section members,including a set of rolls, a ide in advance of the rolls provided with afillet for impartinga twist to the rim portion only of a section passingthrough the ro 15am guide.

. 5. Apparatus for rolling iron sections with undercutsectionmembers,,including a set of rolls, a guide in advance of therolls provided with a fillet having a projection adapted to bend the rimonly of a rim of a section, said guide bending the section independentlyof e rolls.

'1 6. Apperatusfor rolling iron sections with undercut section members,including rolls to shape a. secti "n to approximate structural form toprovi e a body and a thinned portion a. d a, thicker rim portion,finishing rolls, and

a guide intermediate the first and second mentioned rolls to bend therim only to overlie the thi' ned portion of the section.

ln testimony whereof I aflix m signature. r KARL RIUS.

